The {Web Shop Payment Type} field in the ~ BASIC ~ tab is filled in only when the company has a webshop with card payment. The card company is then linked to the payment type in the webshop (Corvus Pay, Stripe, 2Checkout, Paypal, PPEC Paypal).
Card payment affects the choice of the fiscalisation protocol. The rules are described in Sending invoices to F1 or F2.0 fiscalisation.
A card payment received automatically closes the selected liability (customer invoice, membership fee, employee liability and the like) and opens a receivable from the selected card company. The receivable is closed when the card company's payment to the bank account is recorded.